Large aluminium extrusions is designed for large size display light box,with stable structure,our own designed and develop mould ,not only can do big size indoor display light box but also large size outdoor waterproof fabric lgiht box. Engineer No need worry about the installation, we will provide installation wiring drawing and installation video and engineer online video call servic. The engineers at SEG Systems ensure that every design is going to turn out seamlessly. No idea is too wild for these guys. Hit ’em with your best shot!